Book-cover cleaner



H. P. LINDBACK.

BOOK COVER CLEANER.

APPLICATION FLED JUNE 1|. |919.

1,370,657. Patented Mar. 8, 1921.

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BOOK COVER CLEANER. APPLICATION FILED JUNE Il 1919. v 1,370,657, PamnwlMar. s, 1921.

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UNITED STATES HAAKON P. LINDBACK, OF MINNEAPOLIS, MINNESOTA.

BOOK-COVER CLEANER.

Specification of Letters Patent.

Patented Mar. 8, 1921.

Application filed .Tune 11, 1919. Serial No. 303,445.

T 0 all 'whom t may concern Be it known that I, HAAKON P. LIND- BACK, acitizen of the United States, residing at Minneapolis. in the county ofHennepin and State of Minnesota, have invented certain new and usefulImprovements in Book-Cover Cleaners: and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

Particularly, my invention has for its 0bject to provide a simple andefficient machine for rapidly and efiiciently removing surplus metalfoil from book covers after titles, and the like, have been printedthereon by the use of such metal foil. Generally stated, the inventionconsists of the novel devices and combinations of devices hereinafterdescribed and defined in the claims.

In the accompanying drawings which illustrate the invention, likecharacters indicate like parts throughout the several views.

Referring to the drawings Figure 1 is view in plan with some partsbroken away and some parts sectioned, showing the improved machine;

Fig. 2 is a vertical section taken approximately on the line 2-2 of Fig.1;

Fig. 3 is an enlarged vertical section on the line 3-3 of Fig. 2, someparts being broken away;

Fig. 4 is a horizontal section on the line 4-4 of Fig. 3; and

Fig. 5 is a detail in section through the brush on the line 5 5 of Fig.1, some parts of the same being removed.

The various parts of the machine are carried directly` or indirectly, ona marginal hollow base 6 formed with a large rectangular opening at itstop, and in which is fitted a rectangular table 7. This table 7 isadjustably supported from the cross bar 8 located just above the loweredges of the` fianges of the frame 6, and to which. at its ends, it isbolted, or otherwise, rigidly secured. For an important reason, thetable 7 is made vertically adiustable by a device best shown in Fig. 3.This device comprises two telescoped sleeves 9 and 10 having end fiangesrigidly secured, respectively to cross bar 8 and to the table 7. Thenumeral 11 indicates an adjusting screw that is passed through thesleeve 10 and has threaded engagement at its lower end at 12 with lowerend portion of sleeve 9. A pin 13 driven through an eccentric hole insleeve 10 engages an annular groove 14 in screw 11 so that the saidscrew, while free for rotation in lrespect to sleeve 10 and table 7will, nevertheless, carry the said elements 10 and 7 vertically with it.The head of screw 11 is exposed to the top of table 7 but is flush withthe upper surface thereof.

To hold the table 7 against rotation with screw 11 when said table israised out of the opening in frame 6, a dowel pin or guide stud 15 issecured to bar 8 and engages a notch in the rear edge of the said table.

Extended across the front portion of table 7 but spaced a considerabledistance above the same, is a shaft 16 which, at one end, is connectedto, or forms an extension of the armature shaft of a small electricmotor 17 that is mounted on an extended portion 6a of bed frame 6. Atits other end, kshaft 16 is journaled in an arm 18 that is spaced fromone side and extends rearward over the bed frame 6, and, at its rearend, has a flange 18l bolted, or otherwise rigidly secured to saidframe.

Shaft 16 carries a brush and a bufling roller for purposes which will bepresently noted. Said brush may be of any suitable construction, but, asshown, it comprises a plurality of bristle-equipped bars 19 carried byflanged heads 20 rigidly secured to said shaft 16. Buffing roller 21 hasa pliable bufling face 22 of soft cotton or other suitable material.

For carrying off the dust or metal fiber loosened up by the cleaningbrush, a light sheet metal hood 23 is extended from a point immediatelyabove said brush, rearward to the rear portion of frame 6, where it isjoined to a suction tube 24 that leads to a fan casing 25 mounted on therear portion of said frame 6. Fan case 25 is provided with a dischargespout 26 that leads to a suitable port for the discharge or collectionof the metal dust.

Hood 23 is open at its inner side and suction tube 24 is open at itsfront side, so that dust or metal particles will be drawn into the eyeof the fan. substantially on lines indicated by arrows marked on Fig. 1,both from the brush and from the bufiing roller.

Working within the fan casing 25 is a fan head 27, the shaft of whichprojects at Vwill run down `to smaller diameter, and

hence the necessity fory vert-ical adjustments of the table 7. A bookcover is indicated by the character b in I*` ig. 2.

After the title or other matter has been printed on the book cover inthe usual Way by the use of metal foil, portions of thev foil betweenand around the letters and characters must be removed, but this hasusually been done by hand and is a slow tedious operation. y the use ofthis improved machine, the removal of the surplus foil can be quicklyand properly removed in a very efiicient manner. The table T should bevertically adjusted so that when a book cover is placed thereon andmoved under the brush or under the buling roller, the printed surface ofthe cover will be lightly engaged by vthe brush or batting roller, asthe case may be.

i For the removal of the foil, the brush is used, and as this is beingdone, the removed foil will be drawn into the fan casing and dischargedtherefrom under the action of theY fan. After the surplus foil has been,removed, a polish may be given to the sui'- face of the letters and thecover further cleaned by moving the cover under the bufing roller Whilein ila-t engagement with the table 7 v The efficiency of this device hasbeen demonstrated in practice.

Vhat I claim is:

l. In a device oi the kind described, the combination With a marginalbed frame, of a table mounted in an opening thereof, a. brush Workingabove said table, and means for vertically adjusting said table inrespect to said brush, said means comprising telescoped inner and outersleeves, the former being secured to said table and the latter beinganchored in respect to said bed frame, a screw exposed through thetableat its upper end, extended down through and swiveled to the inner sleeveand having threaded engagement with the base of the outer sleeve. Y

2. In a device of the kind described, the combination with a marginalbed frame, of a table mounted in an opening thereof, a brush Workingabove said table, means' for vertically adjusting said table in'krespect to said brush, said means comprising telescoped inner and outersleeves, the former being secured to said table and the latter beinganchored in respect to said bed frame, a

screw exposed through the table at its upper end, extended down throughand sWiveled to the inner sleeve and having threaded engagement with thebase of `the outer sleeve, and a doivel pin anchoredin respect to saidbed 'frame Vand engageable With said table to hold the same. againstrotation While iree for verticaladjustments.

In testimony whereof I aliiX my signature in presence of two Witnesses.`

y HAAKON r. LINDBACK Witnesses l CLARA DEMAREST, BERNIC'E Gr. BAUMANN.

